Answer:

Step-by-step explanation:

Because that's the equation given.
To solve for x, isolate the variable and then divide by the coefficient.

Answer:
Option b
Step-by-step explanation:
- Calcium has atomic no-20
- Hence it has 20 protons
- Silicon has atomic no 14
- Hence it has 14protons
Total:-

X should equal 8 because if you add the three numbers they give you. You will get 20 and the whole thing is 28
The angles are complementary.
Answer: It think that 3 is adjacent to 5